Home / 985,140.65-1,477,251.68-511,698.89

Finding the Fourth Proportional to 985,140.65, 1,477,251.68 and 511,698.89

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Solution

The fourth proportional to 985,140.65, 1,477,251.68 and 511,698.89 is: 767,309.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,140.65 : 1,477,251.68 = 511,698.89 : x
  2. Step 2: Convert to fraction form
    985,140.65/1,477,251.68 = 511,698.89/x
  3. Step 3: Cross multiply
    985,140.65x = 1,477,251.68 × 511,698.89
  4. Step 4: Simplify right side
    985,140.65x = 755,908,034,961.88
  5. Step 5: Solve for x
    x = 755,908,034,961.88/985,140.65
  6. Step 6: Final answer
    x = 767,309.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.